Community Learn Tools Library Leisure

English

Programming Dictionary

Online technical manual for service programmers

Popular searches：
PHP
MySQL
jquery
HTML
CSS

PHP Related dictionaries

time Translation example syntax

ceil Translation example syntax

abs Translation example syntax

floor Translation example syntax

number_format Translation example syntax

parse_str Translation example syntax

str_shuffle Translation example syntax

wordwrap Translation example syntax

strrev Translation example syntax

str_split Translation example syntax

str_repeat Translation example syntax

str_pad Translation example syntax

is_file Translation example syntax

ltrim Translation example syntax

rtrim Translation example syntax

chop Translation example syntax

trim Translation example syntax

pi Translation example syntax

rand Translation example syntax

mt_rand Translation example syntax

min Translation example syntax

max Translation example syntax

sqrt Translation example syntax

round Translation example syntax

pow Translation example syntax

fmod Translation example syntax

strtolower Translation example syntax

strtoupper Translation example syntax

ucfirst Translation example syntax

ucwords Translation example syntax

htmlentities Translation example syntax

htmlspecialchars Translation example syntax

nl2br Translation example syntax

strip_tags Translation example syntax

addcslashes Translation example syntax

stripcslashes Translation example syntax

quotemeta Translation example syntax

chr Translation example syntax

ord Translation example syntax

strcasecmp Translation example syntax

strcmp Translation example syntax

strncmp Translation example syntax

strncasecmp Translation example syntax

strnatcmp Translation example syntax

strnatcasecmp Translation example syntax

chunk_split Translation example syntax

strtok Translation example syntax

explode Translation example syntax

implode Translation example syntax

substr Translation example syntax

str_replace Translation example syntax

str_ireplace Translation example syntax

substr_count Translation example syntax

substr_replace Translation example syntax

similar_text Translation example syntax

strrchr Translation example syntax

strchr Translation example syntax

stristr Translation example syntax

strtr Translation example syntax

strpos Translation example syntax

stripos Translation example syntax

strrpos Translation example syntax

strripos Translation example syntax

strspn Translation example syntax

strcspn Translation example syntax

str_word_count Translation example syntax

strlen Translation example syntax

count_chars Translation example syntax

md5 Translation example syntax

array Translation example syntax

array_combine Translation example syntax

range Translation example syntax

compact Translation example syntax

array_fill Translation example syntax

array_chunk Translation example syntax

array_merge Translation example syntax

array_slice Translation example syntax

array_diff Translation example syntax

array_intersect Translation example syntax

array_search Translation example syntax

array_splice Translation example syntax

array_sum Translation example syntax

in_array Translation example syntax

array_key_exists Translation example syntax

key Translation example syntax

current Translation example syntax

next Translation example syntax

prev Translation example syntax

end Translation example syntax

reset Translation example syntax

list Translation example syntax

array_shift Translation example syntax

array_unshift Translation example syntax

array_push Translation example syntax

array_pop Translation example syntax

shuffle Translation example syntax

count Translation example syntax

array_flip Translation example syntax

array_keys Translation example syntax

array_values Translation example syntax

php array_unique() function

Chinese translationRecent Updates：2018-04-18 16:31:37

UK [juˈni:k] US [juˈnik]

adj. Only, only; unique, unique; unusual, special; extraordinary

php array_unique() function Video explanation

php array_unique() function syntax

Function:Remove duplicate values in the array

Syntax: array_unique(array)

Parameters:

Parameters	Description
array	Required. Specifies an array.
sortingtype	Optional. Specifies how array elements/items are compared. Possible values: SORT_STRING - Default. Compare items as strings. SORT_REGULAR - Arrange each item in regular order (Standard ASCII, does not change type) SORT_NUMERIC - Treat each item as a number. SORT_LOCALE_STRING - Treat each item as a string, based on the current locale (can be changed via setlocale()).

Description: First sort the values as strings, then only retain the first encountered key name for each value, and then ignore all The key name behind. This does not mean that the first occurrence of the same value in an unsorted array will be preserved.

php array_unique() function example

<?php
$a=array("a"=>"php中文网","b"=>"西门","c"=>"php中文网");
print_r(array_unique($a));
?>

Click the "Run instance" button to view the online instance

Output:

Array ( [a] => php中文网 [b] => 西门 )

<?php
$b=array("1"=>"php中文网","2"=>"灭绝师太","c"=>"php中文网",'4' => "欧阳克");
print_r(array_unique($b));
?>

Click the "Run Instance" button to view the online instance

Output:

Array ( [1] => php中文网 [2] => 灭绝师太 [4] => 欧阳克 )

submit